Soil contaminated with bird droppings may contain ________ which can cause respiratory disease in humans.
A. Agrobacterium tumifaciens
B. Clostridium tetani
C. Streptomyces scabies
D. Histoplasma capsulatum
E. Bacillus anthracis
Answer: D
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In C4 plants, which of the following events of
photosyntesis takes place first?
a. carbon from carbon dioxide is fixed by an enzyme that does not use oxygen b. carbon from carbon dioxide is fixed by rubisco c. glucose is produced d. glucose is converted into sucrose e. RuBP splits into two PGA molecules
The type of chemical bond that connects the sugars and phosphates together in a DNA molecule is a
_______________ bond. Fill in the blank(s) with the appropriate word(s).
Which of the following is a stem modification for storage?
A) tuber B) petiole C) internode D) runner
Enzymes are most directly involved with
A. metabolic processes. B. generative processes. C. responsive processes. D. control processes.